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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-09-12 13:28:08 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-09-12 13:28:08 +0000 |
| commit | 462a99aa98416135d2675d07d32f7ce234287983 (patch) | |
| tree | 6a0d7b2184713f09474d42070b1f6e4fa7670a38 /gcc/ree.c | |
| parent | e0bd6c9f0aa67d88bbb20019362a4572fc5fac3c (diff) | |
| download | gcc-462a99aa98416135d2675d07d32f7ce234287983.zip gcc-462a99aa98416135d2675d07d32f7ce234287983.tar.gz gcc-462a99aa98416135d2675d07d32f7ce234287983.tar.bz2 | |
Make more use of REG_NREGS
An upcoming patch will convert hard_regno_nregs into an inline
function, which in turn allows hard_regno_nregs to be used as the
name of a targetm field. This patch rewrites uses that are more
easily (and efficiently) written as REG_NREGS.
2017-09-12 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* caller-save.c (add_used_regs): Use REG_NREGS instead of
hard_regno_nregs.
* config/aarch64/aarch64.c (aarch64_split_combinev16qi): Likewise.
* config/arm/arm.c (output_move_neon): Likewise.
(arm_attr_length_move_neon): Likewise.
(neon_split_vcombine): Likewise.
* config/c6x/c6x.c (c6x_mark_reg_read): Likewise.
(c6x_mark_reg_written): Likewise.
(c6x_dwarf_register_span): Likewise.
* config/i386/i386.c (ix86_save_reg): Likewise.
* config/ia64/ia64.c (mark_reg_gr_used_mask): Likewise.
(rws_access_reg): Likewise.
* config/s390/s390.c (s390_call_saved_register_used): Likewise.
* mode-switching.c (create_pre_exit): Likewise.
* ree.c (combine_reaching_defs): Likewise.
(add_removable_extension): Likewise.
* regcprop.c (find_oldest_value_reg): Likewise.
(copyprop_hardreg_forward_1): Likewise.
* reload.c (reload_inner_reg_of_subreg): Likewise.
(push_reload): Likewise.
(combine_reloads): Likewise.
(find_dummy_reload): Likewise.
(reload_adjust_reg_for_mode): Likewise.
* reload1.c (find_reload_regs): Likewise.
(forget_old_reloads_1): Likewise.
(reload_reg_free_for_value_p): Likewise.
(reload_adjust_reg_for_temp): Likewise.
(emit_reload_insns): Likewise.
(delete_output_reload): Likewise.
* sel-sched.c (choose_best_reg_1): Likewise.
(choose_best_pseudo_reg): Likewise.
From-SVN: r252010
Diffstat (limited to 'gcc/ree.c')
| -rw-r--r-- | gcc/ree.c | 6 |
1 files changed, 2 insertions, 4 deletions
@@ -823,8 +823,7 @@ combine_reaching_defs (ext_cand *cand, const_rtx set_pat, ext_state *state) return false; /* Ensure the number of hard registers of the copy match. */ - if (HARD_REGNO_NREGS (REGNO (src_reg), dst_mode) - != HARD_REGNO_NREGS (REGNO (src_reg), GET_MODE (src_reg))) + if (HARD_REGNO_NREGS (REGNO (src_reg), dst_mode) != REG_NREGS (src_reg)) return false; /* There's only one reaching def. */ @@ -1136,8 +1135,7 @@ add_removable_extension (const_rtx expr, rtx_insn *insn, We allow this when the registers are different because the code in combine_reaching_defs will handle that case correctly. */ - if ((HARD_REGNO_NREGS (REGNO (dest), mode) - != HARD_REGNO_NREGS (REGNO (reg), GET_MODE (reg))) + if (HARD_REGNO_NREGS (REGNO (dest), mode) != REG_NREGS (reg) && reg_overlap_mentioned_p (dest, reg)) return; |